Home / 251,960.30-347,705.69-137,238.59

Finding the Fourth Proportional to 251,960.30, 347,705.69 and 137,238.59

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Solution

The fourth proportional to 251,960.30, 347,705.69 and 137,238.59 is: 189,389.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,960.30 : 347,705.69 = 137,238.59 : x
  2. Step 2: Convert to fraction form
    251,960.30/347,705.69 = 137,238.59/x
  3. Step 3: Cross multiply
    251,960.30x = 347,705.69 × 137,238.59
  4. Step 4: Simplify right side
    251,960.30x = 47,718,636,892.05
  5. Step 5: Solve for x
    x = 47,718,636,892.05/251,960.30
  6. Step 6: Final answer
    x = 189,389.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.